package com.bjpowernode.controller;

import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.PrintWriter;

public class OneServlet extends HttpServlet {
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse resp) throws ServletException, IOException {
        ServletContext application = request.getServletContext();
        application.setAttribute("key1",1);
        application.setAttribute("key1",2);
        application.removeAttribute("key1");
    }

}
